38675021 has 16 divisors (see below), whose sum is σ = 48705408. Its totient is φ = 29832000.

The previous prime is 38674991. The next prime is 38675023. The reversal of 38675021 is 12057683.

It is a happy number.

It is not a de Polignac number, because 38675021 - 2²² = 34480717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38675023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5291 + ... + 10263.

It is an arithmetic number, because the mean of its divisors is an integer number (3044088).

Almost surely, 2^38675021 is an apocalyptic number.

It is an amenable number.

38675021 is a deficient number, since it is larger than the sum of its proper divisors (10030387).

38675021 is a wasteful number, since it uses less digits than its factorization.

38675021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 38675021 is about 6218.9244246895. The cubic root of 38675021 is about 338.1765734738.

It can be divided in two parts, 3867 and 5021, that added together give a palindrome (8888).

The spelling of 38675021 in words is "thirty-eight million, six hundred seventy-five thousand, twenty-one".